• Microfluidics News Admin

[Nanotechnology] Biofabrication of Tobacco mosaic virus-nanoscaffolded supercapacitors via temporal


This paper reports the implementation of temporal capillary microfluidic patterns and biological nanoscaffolds in autonomous microfabrication of nanostructured symmetric electrochemical supercapacitors. A photoresist layer was first patterned on the substrate, forming a capillary microfluidics layer with two separated interdigitated microchannels. Tobacco mosaic virus (TMV) macromolecules suspended in solution are autonomously delivered into the microfluidics, and form a dense bio-nanoscaffolds layer within an hour. This TMV layer is utilized in the electroless plating and thermal oxidation for creating nanostructured NiO supercapacitor. The galvanostatic charge/discharge cycle showed a 3.6-fold increase in areal capacitance for the nanostructured electrode compared to planar structures. The rapid creation of nanostructure-textured microdevices with only simple photolithography and bionanostructure self-assembly can completely eliminate the needs for sophisticated synthesis or deposition processes. This method will contribute to rapid prototyping of wide range of nano-/micro-devices with enhanced performance.

Faheng Zang1, Sangwook Chu2, Konstantinos Gerasopoulos3, James Culver4 and Reza Ghodssi5

Accepted Manuscript online 19 May 2017 • © 2017 IOP Publishing Ltd

Link: http://iopscience.iop.org/article/10.1088/1361-6528/aa742f

#05232017 #capillary #microchannels

Recent Posts

See All

© 2017 by "Microfluidics News".